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package javax.management;

import com.sun.jmx.mbeanserver.JmxMBeanServer;

/**
 * <p>This class represents a builder that creates a default
 * {@link javax.management.MBeanServer} implementation.
 * The JMX {@link javax.management.MBeanServerFactory} allows
 * applications to provide their custom MBeanServer
 * implementation by providing a subclass of this class.</p>
 *
 * <p>
 *  <p>此类表示一个创建默认{@link javax.management.MBeanServer}实现的构建器。
 *  JMX {@link javax.management.MBeanServerFactory}允许应用程序通过提供此类的子类来提供其自定义MBeanServer实现。</p>。
 * 
 * 
 * @see MBeanServer
 * @see MBeanServerFactory
 *
 * @since 1.5
 */
public class MBeanServerBuilder {
    /**
     * Public default constructor.
     * <p>
     *  公共默认构造函数。
     * 
     * 
     **/
    public MBeanServerBuilder() {
    }

    /**
     * This method creates a new MBeanServerDelegate for a new MBeanServer.
     * When creating a new MBeanServer the
     * {@link javax.management.MBeanServerFactory} first calls this method
     * in order to create a new MBeanServerDelegate.
     * <br>Then it calls
     * <code>newMBeanServer(defaultDomain,outer,delegate)</code>
     * passing the <var>delegate</var> that should be used by the MBeanServer
     * implementation.
     * <p>Note that the passed <var>delegate</var> might not be directly the
     * MBeanServerDelegate that was returned by this method. It could
     * be, for instance, a new object wrapping the previously
     * returned object.
     *
     * <p>
     *  此方法为新的MBeanServer创建新的MBeanServerDelegate。
     * 在创建新的MBeanServer时,{@link javax.management.MBeanServerFactory}首先调用此方法以创建新的MBeanServerDelegate。
     *  <br>然后调用<code> newMBeanServer(defaultDomain,outer,delegate)</code>传递应该由MBeanServer实现使用的<var> delegat
     * e </var>。
     * 在创建新的MBeanServer时,{@link javax.management.MBeanServerFactory}首先调用此方法以创建新的MBeanServerDelegate。
     *  <p>请注意,传递的<var> delegate </var>可能不是由此方法返回的MBeanServerDelegate。它可以是,例如,一个新对象包裹先前返回的对象。
     * 
     * 
     * @return A new {@link javax.management.MBeanServerDelegate}.
     **/
    public MBeanServerDelegate newMBeanServerDelegate() {
        return JmxMBeanServer.newMBeanServerDelegate();
    }

    /**
     * This method creates a new MBeanServer implementation object.
     * When creating a new MBeanServer the
     * {@link javax.management.MBeanServerFactory} first calls
     * <code>newMBeanServerDelegate()</code> in order to obtain a new
     * {@link javax.management.MBeanServerDelegate} for the new
     * MBeanServer. Then it calls
     * <code>newMBeanServer(defaultDomain,outer,delegate)</code>
     * passing the <var>delegate</var> that should be used by the MBeanServer
     * implementation.
     * <p>Note that the passed <var>delegate</var> might not be directly the
     * MBeanServerDelegate that was returned by this implementation. It could
     * be, for instance, a new object wrapping the previously
     * returned delegate.
     * <p>The <var>outer</var> parameter is a pointer to the MBeanServer that
     * should be passed to the {@link javax.management.MBeanRegistration}
     * interface when registering MBeans inside the MBeanServer.
     * If <var>outer</var> is <code>null</code>, then the MBeanServer
     * implementation must use its own <code>this</code> reference when
     * invoking the {@link javax.management.MBeanRegistration} interface.
     * <p>This makes it possible for a MBeanServer implementation to wrap
     * another MBeanServer implementation, in order to implement, e.g,
     * security checks, or to prevent access to the actual MBeanServer
     * implementation by returning a pointer to a wrapping object.
     *
     * <p>
     * 此方法创建一个新的MBeanServer实现对象。
     * 在创建新的MBeanServer时,{@link javax.management.MBeanServerFactory}首先调用<code> newMBeanServerDelegate()</code>
     * ,以便为新的MBeanServer获取新的{@link javax.management.MBeanServerDelegate}。
     * 此方法创建一个新的MBeanServer实现对象。
     * 然后调用<code> newMBeanServer(defaultDomain,outer,delegate)</code>传递应该由MBeanServer实现使用的<var> delegate </var>
     * 。
     * 此方法创建一个新的MBeanServer实现对象。 <p>请注意,传递的<var> delegate </var>可能不是此实现返回的MBeanServerDelegate。
     * 它可以是,例如,一个新对象包裹先前返回的代理。
     * 
     * @param defaultDomain Default domain of the new MBeanServer.
     * @param outer A pointer to the MBeanServer object that must be
     *        passed to the MBeans when invoking their
     *        {@link javax.management.MBeanRegistration} interface.
     * @param delegate A pointer to the MBeanServerDelegate associated
     *        with the new MBeanServer. The new MBeanServer must register
     *        this MBean in its MBean repository.
     *
     * @return A new private implementation of an MBeanServer.
     **/
    public MBeanServer newMBeanServer(String              defaultDomain,
                                      MBeanServer         outer,
                                      MBeanServerDelegate delegate) {
        // By default, MBeanServerInterceptors are disabled.
        // Use com.sun.jmx.mbeanserver.MBeanServerBuilder to obtain
        // MBeanServers on which MBeanServerInterceptors are enabled.
        return JmxMBeanServer.newMBeanServer(defaultDomain,outer,delegate,
                                             false);
    }
}
